Reuters: California is coming off of its warmest winter on record, aggravating an enduring drought in the most populous U.S. state, federal weather scientists said Monday. The state had a average temperature of 48 Fahrenheit (9 Celsius) for December, January and February, an increase from 47.2 F in 1980-81, the last hottest winter, and more than 4 degrees hotter than the 20th-century average in California, the National Oceanic and Atmospheric Administration (NOAA) said in a statement. Warmer winters could...